Metal-working machine.



- B. M. w. HANSON; METAL WORKING MACHINE APPLICATION FIL'ED JAN. I0 1916.

Patented Ja11.9,1917.

a Q a (A a 77? L410? i7 I nvEn far BEST AVAILABLE COP B.W.HA .ISON.

METAL WORKiNG MACHWL- APPLICATEON HLEU ,AN. H) 2916.

,iaiented Jan. 9, 1917- 5 SHEETS--SHEET 2.

Affurneg B. M W. HANSGN.

METALWORKING MACHINE.

APPLlCATiON FILED JAN. 10. ms,

Patenteii Jan; 9, 1917,

5 SHEETS-SHEET 3.

Liven fur B. M. W. HANSON.

METAL WORKING MACHINE. APPLICATION FILED JAN. HD1916 I fitefitea J an. 9, 1917.

5 SHEETS-SHEET 4.

m v 4 4 147 mrm/w /4 a u Q7, x

WY '//I/ 7/. 2 -3 a a. gag/5 W B. MuW- HANSON.

METAL WORKING MACHINE.

AFPLICATION men um. I0. 1916.

Patented J an.v 9, 1917 5 SHEETSSHEET 5.

I nvenfar seer AVAILABLE COPY UN1TED STATESPATENT-OFFICE.

BENGT M. W. HANS N, OF HARTFORD, CONNECTICUT, ASSIGN OR T PRATT & WHITNEY COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF JERSEY.

METAL-WORKING- MACHINE.

i 351 E SML Specification of'L'etters Patent. Patented J9 Application filed January 10, 1916. Serial No. 21,316.

To I Zl- "-11 (rm. it may (1012007 71:

lie it known that 1, Baker M. .\V. llfm- I transverse section on the line H of Fig.3, sox, a eitizen ot' the United States, residing looking in the direction of the arrow. Y Fig. at Hartford." in the. con ity of Hartford and 5 is a detail of spring means for effecting hlgato of (:lminertieut, have invented eertain the transverse motion of a slide, a portion ing means beingillustrated. Fig. 4 is 2.60

mm and useful Improvements in Metal-' of a support being shown in sectlonfthe ss \Yorking Machines, of wl 'eh the following .earri'er for the springs being in top plan. isa spet-ifieation. Fig. (i is a diagram of the formers, studs,

This invention relates to metal working work and eertain cooperating devices, the machines. r dotted lines showing the studs in different \Vhile. my improvements are susceptible of positions. general usein the metal. working art, they Like eharaeters reter-tolike parts throughare of espeeial utility when incorporated in out the several, views, which are on different alathe such for instance as may be en'lployed seales. 1 for turning a gun barrel or lXliOYllllligil .\s l have'observed the inventionis capasimilar ollirc.

The machine eomprises a carriage and working machines. It is shown formingpart- :lorming means by which thetool means may of a lathe. Said machine base. base or bed. be eaused to follow a prescribed path. and as'i providedwith a head-stock 3 and a tailit one (it the-primaryobjects of the. instoek 4 between the centers of which the vention to provide tor a relatively small work 5 vwhich may for illustration be a gun i of the maehine as seen from the right in Fig. in the form of a slide movable longituditrarerseof the carriage. barrel blank is mounted- The headstock 3 Another objeet of the invention is the prois that shownin Letters Patent NQ.1,182,17O vision of means-by which a tool will he. issued to me May 9.1916, the tail'stoclr 1 caused to take. a certain path definitely in a being the'subject of my eopendingapplicaposilive and certain manner. tion Serial No. 71,664, filed January 12,1916.

'lhe invention involves other *l'eatu'res of it will be of course,understood thatthespinllKH'lli) and advantairc which with the foredle(ihas assoeiated with it means for rotating going will beystated at length in the 't'ollowthe same, and means for driving the work ing description whevein I will set forth in ()n the baeleol. the bed there is'a bearing 7 detail thatlorm oi embmlimeut oi the inwhich constitutes a suitable support for the 8 \tention which 1 have seleeted lor illustratail-stock 4. 'lhistail-stock is shown in tion in the drawings aeeompanying and Fig.1 but is omitted as alreadyobserved in forming part of the present specification. Fig. 2. The bearing 7 extends almost from 1 do not restrict myself to this particular the right end of the bed 2 to practically the disclosure; 1' may depart. therefrom in sevlire spindle (i and it presents a convenient oral respects within the scopeo'E the invenmeans for sustaining the back'rest 8. The tion defined by the claims following sa-i l de upright or hearing 7 can be connected to the seription. bed or base 2 in any desirable manner as by Referring to said drawingsi'Figure 1 is a several screws 9. front elevation of a metal workingmachine The machine preferably involves a. car- 9Q ble of inclusion in. various kinds of metal (55' embodying the invention. Fig. 2- is a View ri'age such as 10 and which is shown asbein'g 1. the bed, partially 'shown .-being in cross nally of and upon the upper side of the bed, section, and the tflXl-StOClC being removed. means of a suitable nature being provided Fig. 3 is a top plan View of the intermediate in the present case to automatically reciproportion of the base, the main carriage and eate said carriage or main slide. The latter certain slides, the workbeing shown in is equipped with a depending guide. rib 11 I dotted lines and portion ofthework drivadapted to fit the longitudinal slot 12in the bed 2, so that the said carriage or slide will be properly guided on its reciprocation, upward displacement of the carriage being revented by the gib 13 (Fig. 4 bolted to the 5 carriage and fitted against the under side of the bed and by the further fact that the upright or bearing 7 has a gib portion 14 fitting in a rabbet 15 extending longitudinally of the rear side of the carriage, the gib portion 14 overlying the bottom of the rabbet. Any suitable means may be provided for reciprocating the carriage or main slide 10. For this purpose I have shown the cam drum 16 fastened to the shaft17 supported within and extending longitudinally of the bed 2. This cam is given intermittent full rotations,

- being. adapted on each complete rotation to impart a complete reciprocationto the car-' riage or main slide 10. As shown the carriage 10 is provided with a depending stud 17 in the form of an anti-friction roller adapted to enter thecam groove 18 (Figs. 1 and l for example) of the cam drum 16, the cam groove or race 18 being so shaped that one portion or half wi l impart an advance movement to the carriage 10 while the re maining portion will impart an opposite or retractive movement to said carriage. I should note at this time that as the carriage 10 advances longitudinally of the bed 2 the tools thereon turn the work, being free of the work on the backward longitudinal movement of the carriage as will hereinafter moreparticularly appear. The shaft 17 's driven from the spindle 6, being preferably rotated slowly to effect the slow advance of the carriage and quickly at a succeeding point to effect an accelerated return movement of said carriage. I have not shown the means by which the spindle 6 effects the action of the shaft 17 and the two trains of gears by which said shaft is alternately driven slow and fast.

he main slide 10 in the present case travels constantly in astraight direction.

In addition to this main slide there are several auxiliary slides 19, these auxiliary slides 19 having a movement transversely or crosswise ,of the bed 2. here may be any suitable number of these auxiliary slides 19. I have shown (Fig. 1) four-of them. While the auxiliary slides 19 are supported .by and arevmovable transversely of the line of movennent of the mainslide 10, they are not directly sustained by the main slide but are:

directly carried by supports as 20 (Figs. 3 and 4) which present a suitable means b which said auxiliary or cross slide 19 can be adjusted longitudinally of the main slide 10 G0 to vary their lengthwise relation to the work and without affecting their function. ihese supports 20 are shown as consisting of plates, their under surfaces fitting flatwise against the top surface of the carriage or main slide 10 from which as will be clear .tlon; as shown the screws are furnished at furnished with a said plates 20 can be a iusted longitudinally of the base or bed 2. '1 e plates are held in their longitudinally adjurted positions in some suitableway as by T-be ts 21 extending therethrough and the T-heads of which are 7n slidable in T-channels as 23 extending longitudinally of the bed in the upper surface thereof. By loosening the nuts connected with the bolts 21 of any one plate 20, said plate can be adjusted on the bed, and when in adjusted position the nuts will be set. Each plate 20 mayhave 9 depending fin as 24 to enter the narrow portions of one of the T-channels 23. As shown the fins 2-1 extend comparatively closely into 51' in guiding re- 30 lation with the front T-slo't 23 or thilt at the left in Fig. 4.

Each support or plate 20 has ways to receive its slide 19 for movement transversely of the main slide 10 or crosswise of the base 35 or bed 2 which in the present case is practically the same thing. There are as may be inferred four of these cross slides and each is preferably controlled by a former and spring means, the spring means operating d n slide in opposition to a formerz; The formers, of which as will be obvious there are four, are in the present case relatively fixed.

The auxiliary slides 19 carry the tools, a lthough they do not directly support the 5 tools, each tool 25 in the present case being clamped to a tool slide as 26, the auxiliary slides 19 having ways to receive the tool slides 26 for movement crosswise of the main slide or carriage-10. This particular movement of the tool slides 26 is to effect the adjustment of said slides 26 andhence of the turning tools 25 manually crosswise of the main slide 10. Each tool slide is shown provided with a nut 27 connected thereto as by 1 5 a screw 2S, thenuts 27 being situated in I slots 28 formed in the respective auxiliary slides 19 and receiving screws 29 rotative but not endwise movable, the nuts 27 as will be clear being fixed to the respective slides 26. It will, therefore, be clear that by turning a screw 29 the slide 26 cooperative therewith will be moved inward or outward inaccordance with the direction in which said'screw is turned so as to cause the cutting'end or portion of the corresponding turning tool 25 to either aproach toward or recede from the work. he screws 29 as shown are provided with means to, facilitate their opera their forward ends with heads 30 receive a wrench.

Each of the auxiliary slides 19 is shown projection or stud as 31. consisting advantageously of an' anthfriotion roller, the rollers being cooperative with formers as 32 normally fi'xed. As represented h bearingor upright 7 to which I ha \o already alluded, is furnished with an inward. extension 33, to the under side of which the 1:30

shaped to several formers 32 are shown as rigidly connected, screws 34 being illustrated for. the

purpose. I provide aplurality of formers and arrange them'out of line in the direction of the length of the travel of the main slide 10, byreason of which the amount of movement of said main carriage can be reduced or brought within comparatively small com-' pv S5; The formers as will be noticed on ins'i i-ection of-the diagrammatic Fig. 6 are in o erlapped relation, being shown as staggered. The outer or what is shown in- Fi 6 as the upper faces of the formers, c0nsti* tute the contour forming portions thereof as it is these faces which determine the shape .of thecut to be made by the tools. The work backward movement.

the carriage has finished said movement the may require a fillet atone point and a collar J or an enlargement at another and the contour forming faces of the respective formers Will be shaped to insure this end. In some cases the article to be turned may be a cylinder ofuniform diameter, and in this event the contour defining faces of the formers wou1 d be perfectly plain or uniformly fiat.

In any event the invention does not neces sarily concern the shape of the contour de-' fining portion of any former. Except as to the shape or form of the contour defining face of each former, they are identical-in character, so'that a detail description of one will apply to the other. Each has two sides 35 and 36. the sides or faces 35 presenting the contour forming or advance faces'while the sides or faces 36 constitute the return' facesl itbeing understood that when a stud is traveling in contact wlth a face m a forward direction or toward the left in] 'Fi'g',"6, the turningtool associated therewith, is cutting while when thc stud is passing" along the face '36'the tool is not cutting, being spacedor separated from the work, the former'action occurring on the advance of the ca.rriage'10,'whilethe latter ensues on'the retractive stroke of the carriage. In

addition to the sides or faces 30 and 36 each former has ends 37 and 38, each end connecting a side 36 with a side 35 on a forward bevel or angle, while each end or face 37 connects aside with a sidc36 on a,

back slant.

It will be assumed that the carriage lllhas commenced its advancing movement and that the studs 31 are at the-entering ends of the-faces as shown by full lines in Fig. 6. As the carriage continues to aa- -\'af1c'e the studs 31 will travel along the se!- eralfaces until they reach the ends of, said faces at which point the advancing movement of thecarriage will be completed. At this time, or just about the instant the carriage L10 concludes its advancing movement, thestuds 31 will be automatically nufved in the present case toward the front of the machine as will hereinafter appear and away from the plane of the faces 85,

so that whenthe carriage commences its back stroke, the studs 31 will be opposite the entering ends of the bevel faces 38 as shown by dotted lines 31 in Fig. 6, by reason of which as'the carriage returns the studs 31 will travel along the faces 38 and then along the faces 36, the dotted lines 31 showing the positions the studs occupy when the" carriage 10 has nearly completed its Just about the time after the carriage has advanced a short dis-.

tance. It will be understood that when the studs 31 are in engagement-with the con tour-defining faces 35 thetools 25 are cutting, longitudinally traversing the work 5,

and following apathconforming approximately to the shape of the respective contour-defining faces. The movement of the studs l from off the faces 35 and toward the front of the machine is followed by a corresponding movement of the turning tools 25, the tools leaving the work the mo; ment the studs pass from the faces 35 and onto the faces 38. the tools rcmaining'out of contact with the work while the studs 31 engage the faces 38, the faces 36 and faces 37, the faces 38 positively causing the movement ofthe tools away from the work and the faces 37 causing the movement of the tools toward the work, the tools engaging the work when the. studs 31 enter the faces Each former acts effectually to :prcvent accidental backward movement fol a stud 31 and auxiliary slide 19 connia-trd therewithland the tool 25 associated with' 'said auxiliaryslide, the tools 25 when the studs 31 are passing along the faces :lliihcing separated some distance from the work. As a nattor of, fact the tools are separated. a fairly considerable distance from the work just almut'thc time the rarriagc (-ohgplrii' v' its back stroke atwhich point the stilds Iii will be inthe position 31", by virtue ofphich it becomes'a simple matter to dismount the 1 work Without interference with the turning tools. -It will be clear that the n'ioven'ient of each auxiliary slide 1%) with respect to the main slide 10 transversely of the vlatter is secured through the action of therespective formers. and spring means combined ti ith. Said springmeans may be of any desirable nature, although the 'means shown for this purpose and now to be ,de-

scribed is satisfactory. I will describe in detail the spring means employed in conjunction with one of the'auxiliary slides, and this will apply to the others. For this purpose reference may be had to Figs. 4C and The plate 20 shown in said Fig. 4 has an elongated slot 40 extending transversely of the machine to receive the bar .11 indented in its ends to receive the conical inner portions of the coaxial. screws 12 extending through the plate or support 20. This bar -11 has midway ofi.its length a longitudinal slot 43 to' receive for sliding movement the stud or projection 11 depending from the auxiliary slide 19. Surrounding the bar 41 at opposite sides of the stud H are the coiled springs 15 and 16 which are adapted to impart alternately opposite movements to the auxiliary slide 19 transversely of the main slide 10. \Vhen the stud 31 carried by said auxiliary slide 19 is in either the position 31 or 31 at which point the auxiliary slide occupies what is shown as a' neut'al .position the stud 41 will be disposed practically centrally of the bar 41 and of the slot -13 therein, the ends of the springs 45 and 46 at this time abutting against the stud -11. It will be assumed that the carriage 10 is at the limit of its back stroke and that the stud 31 is in the position 31 (Fig. (3). At this time the slide 19 now with its adjuncts being specifically described, is in the neutral position thereof. As the slide or carriage 1.0 commences to advance, the stud 31. rides along the inclined face 37 and owing to the fact that said face is of cam or wedge form, the slide '19 is caused to move transversely toward the hack of the machine or toward the right in Fig. 4, so that. the stud all by acting against the spring 15 will compress said I spring, the spring getting its maximum compression just algiut the Itime the stud 31 enters the contoim forming face .When the stud 31 reaches the leaving end of the face. 35 the. former 32 will free the stud at which point the compressed spring .45 will move the slide 19 forward and away from the face 35 or towardthe left in Fig. 4, so that the stud 31 is moved to the. position 31%, the stud 4-las the slide anovcs toward the front striking the inner end of he spring 46 just about the time said stud 5! reaches the position 31 As the stud 31. travels along the wedge face 38 said wedge or eam fare acts tomove the slide 19 toward the left in Fig. 4, so that thc stud acting against: the. spring 46 can compress said spring as the stud 31 travels along the face 33. the'spring -16 obtaining its maximum compression just about the time the stud 31 leaves the face 38 and enters the face 36, the spring 16 being n'mintained under compression while. the stud 31. passes 4 alone the face 36. ,i lien, therefore. at the l a V nieans' for supporting conclusion of the back stroke of the car- 'riage 10 the stud 31 passes from 01! the ,ltS forward movement this stud 31 will positively ride along the bevel face37 so as to cause the movement of the slide 19 toward' the work and into engagement with the work just as the stud 31 enters the face 35. It will be understood that through the joint action of the former 32 and the spring 45, the tool 25 is caused to follow the outline of the contour forming face 35 of said as former 32. I i

No doubt the operation of the machine will be clearly understood from the previous I description. Nevertheless it may be desirable to briefly allude to the procedure. \Vith the. work 5 mounted between the centers of the live and dead spindles as shown in Fig. (3 and with the carriage 1O retracted, the studs 31 will be in the position shown by the dotted lines 31 in said Fig. (3. At this time the tools '25 will be separated from the work. On the advance of the carriage or slide 10, the studs 31 will be caused to traverse the faces 37 as the carriage advances. and when said studs enter the faces 35 as shown by full lines in said Fig. 6, the tools 25 will have been moved into engage ment with the work as also shown by said full lines in said view. As the carriage advanees the studs 31 travel along the faces 35, and when the advancing stroke of the carriage: is completed and practically when .the carriage is in readiness to reverse; the

'31. This moves the tools 25 slightly away from the work. .011 the back motion of the (alrriage the studs 31 successively traverse the faces 38 and 36 and when the back stroke is practically finished the studs are 11: returned tothe positions 31. Each tool 25 '7 during cutting turns a predetermined length of the blank, the end of the cut of the first tool being practically coincident with the eonnneneement of the cut of the second tool and so on. so thatvthe several tools jointly turn the workto the necessary shape.

What I claim is:

l. metal working machine comprising and rotating work, a 1'30 main slide mounted to travel in the direction of the axis of rotation of the work, a plurality of auxiliary slides carried by the main slide for movement transversely of, the line of motion thereof. th'a auxiliar Y slides 11a being provided with means for supporting 'turning too s. and means acting against the auxiliary slides to mu'ise. the turning (1 01 in he sinmltaneouslv brought against the work and thus turn the work along longitudinally distinct zones on the movement of the main slide and to also cause the auxiliary slides to move the turning tools free of the work at, the conclusion of the respective cuts. a v 2. A metal working machine comprising means for supporting-and rotating work, a

pluralityof turning tools, supporting means .for said turning tools, and automatic mechaniism to cause the turning tools to be simultaneously brought, against the" work at "longitudinally' separated points, to cause the tools to simultaneously move in the direction of the axi'sof the" work while thereagainst for-thus turning the wprksimulta neously alonglongitudinally distinct zones ""and't'o 'fcause the tools; to move free of the j Work at ',the conclusion of predetermined cuts; a

3. A metal Working machine comprising means for supporting and rotating work, a plurality of turning tools, supporting means for said turning tools, andautomatic mechanism to cause the turning tools to. be simultaneously brought against the work at 1011- cgitudinally separated points to .cause the tools to movein the direction of the axis of the work Whilethereagainst to cause one tool to finish its out practically at the point '30 of commencement of the cut ofthe tool next to it and to also cause the several tools to pass free of the work at the conclusion of the predetermined' cuts. V I v 4. A metal working machine comprising means for supporting and rotating work, a

plurality of turning tools, supporting means for said turning tools, and mechanism for automatically moving the turning toolsin the direction of the axis of the work while -40 thereagainst simultaneously along longituthedirection-of the axis of the workwhilc' thereagainst simultaneously along longitu dinally distinct zones, for moving one tool approximately to the point where another tool commences its out and moving the tools free of thework at the "conclusion of the predetermined cuts.

6. A metal working machine comprising means forsupportmg and rotat ng work, a

main slide mounted to travel in the direction of the axis of rotation of the Work,'a plurality of auxiliary slides carried by the main slide for movement transversely of the line of motion thereof, the auxiliary slides being provided with means for supporting turning tools, independent formers, and cooperating means acting against the auxiliary slides to cause the turningtools to be simultaneouslyl rought against the work and thus turn the work along longitudinall distinct zones on the movement of the main slide and to also cause the auxiliaryslides to move the turn ing'tools free of the-work at the conclusion of the respective cuts, said formers control ling the IQSPUCtlVG auxiliary slides.

7. A'in'etal working machine comprising.

means for supporting and rotating work, a main slide mounted to. travel in the direction of the axis oi rotation of the work, a-

plurality of auxiliary slides carried by the main slide for movement transversely of the line of motion thereof, the auxiliary slides being provided with means for supporting turning tools, independent formers, and co- -operating' means acting against the auxil iary slides to cause the turning tools'to be siiniillanemisly brought against the work and thus turn the work along longitudimilly distinct zones on themovemcnt of the main slide and to also cause the auxiliary slides to move the turning! tools iree ofthe work at the conclusionof the rospective cuts, said formers being disposed in staggered order in the direction of movement of the main slide.

8. A metal working machine comprising means for supporting and rotating work, a main slide, means for reciprocating said main slide nrthe direction oi the :iXlSof'rntationoi the work, a plurality of auxiliary slides carried by the main slide for movement transversely of the line of motion thereo'l' the auxiliary slides being provided with means "for supporting turning tools, automatic means acting against tho-auxiliary slides approximately at the cominencement of t'he reciprocation-of the main slide for i'i'iovii-ig the turning tools against the work at longitudinally separated points and for Jlltllltllllllllg the tools in cutting relation with the work (l\1I'l1ll"tllU advance of the main slide and for subsequently automati cally moving the tools out of ei'igageinent with the work approximately at the "con clusi in (if-said advance, to thereby cause the tools first to turn the'woi'k along longitudin'ally distinct zones and to then free the work. 4

9. A metal Workingmachine comprising means for supporting and rotating work, a

plurality 'ofturningtools,su rting means for said turning tools, and illluUUlil ic mechanism to cause the turning tools tobesimul taiieously brought against the work at longitudinally"separated points to cause the tools to travel in the direction of the axis of the work for simultaneously turning distinct zones and' to also move the tools free of the work at the conclusion oi the predetermined cuts.

10. In a metal working machine, the combination of a rcciprocatory main slide, an

reciprocating the tools in the direction of the axis of the work, and means for automatically moving the tools in contact with the work approximately at the commencement of the reciprocation, for maintaining them in contact with the Work during the advance of the reciprocation and for moving them out of contact with the work ap proximately at the conclusion of the reciprocation and maintaining them in such latl0 ter relation until a second reciprocation.

In testimony whereof I afiix my signaturein presence of two witnesses.

BEIYG-T M. W. HANSON lVitnesses W. M. Sromzs, C. M. GELLERT. 

